/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Definition for input control object.

*

*/

#ifndef ACCPOLINPUTCONTROL_H

#define ACCPOLINPUTCONTROL_H

#include <accpolaudiocontrolbase.h>

/**

 *  Class definition for input control objects.

 *

 *  @accpolaudiodevicetopology.lib

 */

NONSHARABLE_CLASS ( CAccPolInputControl ) : public CAccPolAudioControlBase

    {

public:

    /**

     * Destructor.

     */

    virtual ~CAccPolInputControl();

    /**

     * Two-phased constructor.

     */

    IMPORT_C static CAccPolInputControl* NewL( CAccPolObjectCon* aObject = NULL );

    /**

     * Two-phased constructor.

     */

    IMPORT_C static CAccPolInputControl* NewLC( CAccPolObjectCon* aObject = NULL );

    /**

     * Two-phased constructor.

     */

    IMPORT_C static CAccPolInputControl* NewL( const TUint8 aUnitId );

    /**

     * Two-phased constructor.

     */

    IMPORT_C static CAccPolInputControl* NewLC( const TUint8 aUnitId );

    /**

     * Assign operator for input control class.

     *

     * @param CAccPolInputControl, Const reference to object to be copied.

     * @return CAccPolInputControl, Reference to object pointer.

     */

    IMPORT_C CAccPolInputControl& operator= ( const CAccPolInputControl& );

    /**

     * Returns input source unit Id.

     *

     * @return TUint8, Audio unit Id.

     */

    IMPORT_C TUint8 Input() const;

    /**

     * Set input source unit Id.

     *

     @ param aUnitId, Audio unit Id.

     * @return void.

     */

    IMPORT_C void SetInput( const TUint8 aUnitId );

    /**

     * Duplicates the object data.

     *

     * @return CAccPolObjectBase*, Pointer to duplicated object.

     */

    CAccPolObjectBase* DuplicateLC( CAccPolObjectCon* aObject = NULL );

    /**

     * Externalize object.

     *

     * @param aStream, Write stream object.

     * @return void.

     */

    void ExternalizeL( RWriteStream& aStream ) const;

    /**

     * Internalize object.

     *

     * @param aStream, Read stream object.

     * @return void.

     */

    void InternalizeL( RReadStream& aStream );

private:

    /**

     * C++ default constructor.

     */

    CAccPolInputControl( CAccPolObjectCon* aObject = NULL );

    /**

     * C++ constructor.

     */

    CAccPolInputControl( const TUint8 aSourceId );

    /**

     * By default Symbian 2nd phase constructor is private.

     */

    void ConstructL();

private:

    /**

     * Input source unit Id.

     */

    TUint8 iUnitId;

    };

#endif // ACCPOLINPUTCONTROL_H